docs: ndnsec man pages improvements

 * Add a "See Also" section to most pages
 * Streamline/clarify some sentences
 * Refresh a few examples

Change-Id: I3e0b62ad01c06faac632a120cde22a8da472426e
diff --git a/docs/manpages/ndnsec-export.rst b/docs/manpages/ndnsec-export.rst
index de232a6..86b62d0 100644
--- a/docs/manpages/ndnsec-export.rst
+++ b/docs/manpages/ndnsec-export.rst
@@ -4,27 +4,31 @@
 Synopsis
 --------
 
-**ndnsec-export** [**-h**] [**-o** *file*] [**-P** *passphrase*]
+**ndnsec export** [**-h**] [**-o** *file*] [**-P** *passphrase*]
 [**-i**\|\ **-k**\|\ **-c**] *name*
 
 Description
 -----------
 
-:program:`ndnsec-export` exports a certificate from the **Public Info Base (PIB)** and
-its private key to a file. It will ask for a passphrase to encrypt the private key.
-The resulting file can be imported again using :program:`ndnsec-import`.
+Export a certificate from the local **Public Information Base (PIB)** and its private key to
+a file in **SafeBag** format.
+The command will interactively ask for a passphrase to be used for encrypting the private key.
+
+The resulting file can be later imported using :program:`ndnsec-import`.
 
 Options
 -------
 
 .. option:: -i, --identity
 
-   Interpret *name* as an identity name. The default certificate of the identity will be exported.
-   This is the default unless **-k** or **-c** is specified.
+   Interpret *name* as an identity name.
+   The default certificate of the identity will be exported.
+   This is the default unless :option:`-k` or :option:`-c` is specified.
 
 .. option:: -k, --key
 
-   Interpret *name* as a key name. The default certificate of the key will be exported.
+   Interpret *name* as a key name.
+   The default certificate of the key will be exported.
 
 .. option:: -c, --cert
 
@@ -36,18 +40,24 @@
 
 .. option:: -P <passphrase>, --password <passphrase>
 
-   Passphrase to use for the export. If empty or not specified, the user is
+   Passphrase to use for encryption. If empty or not specified, the user is
    interactively asked to type the passphrase on the terminal. Note that
    specifying the passphrase via this option is insecure, as it can potentially
    end up in the shell's history, be visible in :command:`ps` output, and so on.
 
-Example
--------
+Examples
+--------
 
-Export an identity's default certificate and private key into a file::
+Export an identity's default certificate and private key to a file::
 
-    $ ndnsec-export -o alice.ndnkey /ndn/test/alice
+    $ ndnsec export -o alice.ndnkey /ndn/test/alice
 
 Export a specific certificate and its private key to the standard output::
 
-    $ ndnsec-export -c /ndn/edu/ucla/alice/KEY/1%5D%A7g%90%B2%CF%AA/self/%FD%00%00%01r-%D3%DC%2A
+    $ ndnsec export -c /ndn/edu/ucla/alice/KEY/1%5D%A7g%90%B2%CF%AA/self/%FD%00%00%01r-%D3%DC%2A
+
+See Also
+--------
+
+:manpage:`ndnsec-cert-dump(1)`,
+:manpage:`ndnsec-import(1)`